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中文摘要：
提出了考虑桩-土-结构动力相互作用的输电塔线体系简化抗震计算模型。采用附加质量法对导线进行简化，用改进的集中质量模型来模拟输电塔下部结构，建立了桩-土-塔-线体系简化抗震计算模型。以一具体输电塔为例，在三种不同的场地条件下，分别采用本文的简化模型和文献【5】的整体模型对桩-土-塔-线体系在地震作用下的动力反应进行对比分析。结果表明，简化模型与整体模型的计算结果吻合较好，且可以大大提高计算效率，节省计算时间：在软弱、中硬场地，导线对塔体反应影响显著，不能忽略。有关研究成果可供工程设计参考。
英文摘要：
The simplified aseismic calculation model for transmission tower-line system considering pile-soil dynamic interaction is given. A simplified aseismic calculation model for pile-soil-transmission tower-line system is set up using the additional mass method and lumped mass model. Based on a transmission tower, the seismic response of the simplified model for pile-soil-transmission tower-line system is calculated and compared with the complete model suggested in Reference [5] under three different site conditions. It can be concluded that the results of the simplified model is in good agreement with of the complete model. Examples show that the method saves calculation time and promotes calculation efficiency greatly. It is also shown that lines have a significant effect on the dynamic response of the system on soft sites and medium sites. Results of the study can be applied as a reference for engineering design.
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